baber/WOPTO huggingface dataset:
Patent GB-339479-A (GB)
Title: Improved method and apparatus for the destructive hydrogenation of carbonaceous materials
IPC: C10G1/06
Filed: 1929-11-29
Abstract: 339,479. Tate, W. R., Stephenson, H. P., Lehmann, J. F., and Imperial Chemical Industries, Ltd. Nov. 29, 1929. Hydrogenation, destructive.-The liquid level in a reaction vessel 2 or in a catch pot which may be an annular chamber 4 is controlled in accordance with the indications of a mercury U- tube manometer 9, 11 which measures the pressure necessary to force gas through a pipe 12 reaching to the bottom of the liquid. One limb of the U-tube is connected through a valve 18 and catch pot 2 to a pipe 8 opening into the reaction chamber and the other limb 11 is connected through a catch pot 20, valve 19, and pipe 15 to a pipe. 16 which dips into the liquid in the reaction chamber and receives hydrogen from a branch 13 of the main supply. In a modification, one limb of the U-tube is connected to the gasexit pipe of a condenser receiving the vaporous products of the reaction, and the other is connected to the outlet of a pump which compresses the gas for return to the reaction chamber. The invention is applicable to the apparatus described in Specifications 329,045 and 338,150.
Patent GB-349926-A (GB)
Title: Improvements in laminated springs
IPC: F16F1/22
Filed: 1929-12-02
Abstract: 349,926. Laminated springs. BURNAND, E., 49, Rue Desrenaudes, Paris. Dec. 2, 1929, No. 36839. [Class 108 (iii).] In order to increase the self-damping effect in laminated springs, an additional leaf 2 is interposed between any two ordinary leaves and is constrained at one end only by a connection 7 to another leaf 4. Deflection of the spring thus results in longitudinal movement of the leaf against frictional resistance. The connection between the ends of the leaves 2, 4 may include a spring 8. In the modification shown in Fig. 2, the damping leaf 16 is arranged below the short leaf 22 and is riveted at 19 to the master leaf 17, all the leaves being forced together by a clip and springs 23. In a semi-elliptic spring, the inner ends of the two damping leaves 26, Fig. 3, are separated by the gap 24 and all formed with recesses 27 with which the spring clamps co-operate so as to allow but limit longitudinal movement of the leaves.
Patent GB-625701-A (GB)
Title: Improvements in processes for grinding wood shavings or any other vegetable fibrous material
IPC: D21B1/06
Filed: 1946-12-16
Abstract: In a process for grinding wood shavings and other fibrous material such as straw, in which the material is first softened by steam and then subjected to the action of grinding discs, hot water at a temperature above 80 DEG C. is injected into the apparatus so as to act on the material after it has been softened by the steam but before it reaches the grinding discs.  Hydrolizing reagents such as mineral or organic acids or salts thereof may be added to the material either (1) before it enters the grinding apparatus or (2) at the moment of entry into the apparatus or (3) in solution in the hot water.  In the first case, a dilute solution of the hydrolizing reagent may be added to the water used to moisten the shavings while in storage, and in the second case the reagent may be added in dilute solution or in powder form.  An example quoted for the third case is an 0.5 per cent solution of oxalic acid.
Patent GB-323353-A (GB)
Title: An improved aluminium alloy
IPC: C22C21/12
Filed: 1928-12-18
Abstract: 323,353. Hall, H., C., and Bradbury, T. F. Dec. 18, 1928. Alloys.-An aluminium alloy contains 0.5-5 per cent of copper, 0.-1.7 per cent of magnesium, 0.2-1.5 per cent of nickel, 0.6-1.5 per cent of iron, over 0.5-2.8 per cent of silicon, and up to 0.3 per cent each of manganese and titanium. The alloy is made by the addition to aluminium of alloys rich in one or more of the other constituents. Specification 300,078 and 312,555 are referred to.
Patent GB-1487894-A (GB)
Title: Apparatus for controlling an accelerator pump and the throttle valve of an internal combustion engine
IPC: F02M7/08
Filed: 1975-01-14
Abstract: 1487894 Throttle valve and accelerator pump control PAUGUST 14 Jan 1975 37661/75 Divided out of 1475451 Heading F1B and F1H The operating member 37 attached to an accelerator, actuates an accelerator pump (not shown but operated via rod 39 and lever 38) in advance of a throttle valve 32 so that fuel is supplied via an injection tube 42 to a carburetter Venturi 43 before the throttle valve 32 opens. The delay is provided by a lost motion slot 41 in the linkage connecting the throttle valve 32 to the operating member 37. A spray of fuel is firstly formed by a baffle 44 and is then entrained by air flow to form mixture upon accelerating or starting.
Patent GB-1463863-A (GB)
Title: Bibs and slippers
IPC: B29C53/36
Filed: 1975-08-27
Abstract: 1463863 Folding and finishing edges of sheet material DUNI BILA AB 27 Aug 1975 [28 Aug 1974] 37678/74 Heading B5K [Also in Division A3] Sheet material is cut and folded to form a bib or slipper (see also Divisions D1-D2) having a pocket at one end and side flaps. Longitudinal strips 21 are cut from the material, displaced inwards and secured by glue spots 22, 23 to serve as ties in the final article. Side flaps 26, 27 are folded over the ties and are coated with lines of adhesive 32, 33. The sheet is then cut transversely and its end folded over on to the lines of adhesive to form the pocket.
Patent GB-344916-A (GB)
Title: Improvements in crank shafts and bearings therefor
IPC: F16C9/03
Filed: 1929-12-09
Abstract: 344,916. Roller bearings. ALDERSON, H. J., 150, Spadina Avenue, Toronto, Canada. Dec. 9, 1929, No. 37721.. [Class 12 (i).] A roller thrust bearing for disc journals of crank shafts comprises double-cone rollers 50, a ring 49, and bevelled rings 51, 52 each of which is screwed in from the side. The rollers are journalled at 46 in retaining rings. In large bearings worm gear may be fitted, Fig. 6, for adjusting the rings 51, 52. The rings are held in place by pins 59 which engage in notches in a central rib 57 formed on the bearing frame 56.
Patent GB-1254495-A (GB)
Title: Cryosurgical instrument
IPC: F25B9/02
Filed: 1969-07-28
Abstract: 1,254,495. Cryosurgical instruments. FRIGITRONICS OF CONN., Inc. 28 July, 1969 [21 Oct., 1968], No. 37758/69. Heading A5R. A cryosurgical instrument comprises a housing 10, 12, a closed tubular probe 16, a fluid delivery tube 66 reciprocably mounted inside said housing and probe to form an annular exhaust passage, an inlet valve between the probe and the delivery tube, an exhaust valve between the housing and the delivery tube communicating with the annular exhaust passage, a bellows 54 to hold the delivery tube 66 in such a position that the inlet valve is open and the exhaust valve is shut, a lever 18 and plug 56 attached to the bellows 54 to reciprocate the delivery tube, a fluid supply tube 20 and a fluid exhaust tube 22. The inlet valve comprises a ball 98 and the flared end 96 of the fluid delivery tube and defines a metering orifice 100 when closed. The exhaust valve comprises a seat member 78 on the fluid delivery tube and a seat member 50 in the core member 32 of the housing 10. The plug 56 attached to the bellows 54 has a threaded portion 58 around which an annular portion 68 of lever 18 is threaded. This annular portion is deformed at the sides to grip the plug 56 so that when the lever is depressed the plug 56, bellows 54 and core 32 are forced forwards thus forcing the fluid delivery tube 66 forwards. The annular exhaust passage is attached to the fluid exhaust tube 22 by an exhaust line 103. In another embodiment Fig. 8 not shown the rear end of the fluid delivery tube (66') is positioned inside a connector tube (104) and is attached to a fluid supply 20'. The exhaust tube 112 is disposed around the fluid supply and is attached to the connector tube.
Patent GB-369216-A (GB)
Title: Improvements in or relating to the production of ethyl alcohol from ethylene
IPC: C07C29/04
Filed: 1930-12-15
Abstract: Examples are given of the preparation of catalytic agents for use in the hydration of ethylene.  (1) One molecular proportion of cadmium oxide is heated with two molecular proportions of aqueous phosphoric acid, the mixture being evaporated to dryness at 130 DEG  C. and the product made into small pellets.  (2) In the process of Example (1), 1,5 molecular proportions of acid are used.ALSO:In the hydration of ethylene in the liquid or vapour phase, the catalyst contains a phosphate of cadmium, beryllium, zinc, aluminium, tin, lead, which may be employed together with known catalysts and may be supported on inert carriers such as pumice or asbestos.  With respect to cadmium phosphate, a particularly active catalyst is obtained by heating together cadmium oxide and phosphorus pentoxide in a molecular ratio between 1,1 and 1,38.  The reaction may be carried out in the liquid or vapour phase, and at ordinary or increased pressure, the preferred reaction temperature being between 100 DEG  and 300 DEG  C.  Thus the ethylene may be compressed to 100 atmospheres and brought into contact in countercurrent with an aqueous solution of a catalyst salt to which is added sufficient of the corresponding acid to prevent hydrolysis.  When working in the vapour phase, it is preferred to use an excess of ethylene, aqueous alcohol being separated by cooling and surplus ethylene recirculated.  In the examples, (1) a catalyst is prepared by heating one molecular proportion of cadmium oxide with two molecular proportions of aqueous phosphoric acid, the mixture being evaporated to dryness at 130 DEG  C., and the product made into small pellets.  A mixture of 1 volume of steam with 3 volumes of ethylene is passed over this catalyst at 200 DEG  C., the time of contact with the catalyst being 0,6 minutes.  On cooling, an aqueous condensate containing 3,6 per cent of ethyl alcohol is obtained.  (2) A mixture of 3 parts of steam with 7 of ethylene under a total pressure of 100 atmospheres is passed over a catalyst prepared as in example 1, but using 1,5 molecular proportions of acid instead of 2. The catalyst is maintained at 290 DEG  C. and the time of contact is 1 minute.  The products include 243 g. of alcohol and 1 g. of ether per hour, the conversion of ethylene per passage being 3,36 per cent. 6,9 g. of a polymerization product of ethylene are also formed.
Patent GB-851253-A (GB)
Title: Improved electric dry battery
IPC: H01M2/04
Filed: 1958-11-26
Abstract: 851,253. Batteries. NING, T. Nov. 26, 1958 No. 38145/58. Class 53 A dry cell is closed by a metal contact plate 9, the periphery of which is enclosed in an insulating band 10. Below the plate 9 is an insulating disc 7 which is sealed to an insulating ring 6 which tightly embraces the electrode 2. The periphery of the disc 7 is passed round the band 10, and the rim of the container 1 is bent over the periphery of disc 7 and the band 10, Fig. 2 shows a modification in which the metal contact plate 18 is sealed into an insulating closure disc 20, the periphery of which is enclosed in an insulating band 21 held in place by a beading 24 on the cell container. A wax or asphalt ring 27 abuts against the disc 20 to prevent liquid from the cell reaching the plate 18.
Patent GB-896622-A (GB)
Title: Improvements in retractable undercarriages for trailer vehicles
IPC: B60D1/66
Filed: 1958-11-26
Abstract: 896,622. Fifth-wheel couplings. TASKERS OF ANDOVER (1932) Ltd., and GRANT, K. A. Nov. 26, 1959 [Nov. 26, 1958], No. 38162/58. Class 103(5). A fifth wheel coupling member on a trailer comprises a wheeled undercarriage which may be moved backwards or forwards on rollers in guides 11 by pivoted links 22, 23, and 26 operated from a striker plate 27 adapted to be pivoted upwardly by the reversing tractor, telescopic wheel legs 17, locking members 41 adapted to lock the wheels in their extended positions, means to unlock the legs and retract the wheels before the limit of rearward movement of the undercarriage is reached, and means to move the undercarriage forwardly and lower the wheels when the trailer is uncoupled. A cross member 20 interconnecting the wheel posts 15 supports uprights 38 mounting a shaft 35 and brackets 36 carrying a roller 37, and rods 33 are pivotally linked to the axle 18 and the ends of the shaft 15. The uprights 38 mount bell crank levers 39 fulcrumed at the elbow and interconnected by a cross shaft 40 carrying the locking members 41 which may project through the posts 15 and urge spring biased stops 44 against an angle bar 45. The other arms of the bell cranks 39 support a shaft 42 mounting a roller 43, and tension springs 43a bias the bell cranks to the Fig. 4 position. A plate 46 having a cam nose 47 and a slot 48 is arranged to co-operate with the roller 43. To prevent dropping of the striker plate 27 when the tractor is being turned at 90 degrees to the trailer, one of a pair of lugs 50 positioned on either side of a normally spring centred latch 52 on a shaft 51 is engaged by the latch when an arm 53 extending down from the shaft 51 is rocked by the Vee opening in the plate 57. A brake pipe 56 mounted on a finger 56a so as to rotate about the king pin 30 carries a cam 53a also arranged to co-operate with the sides of the Vee opening so that the pipe 56 may mate with a pipe 62 on the tractor, and the ends of electrical leads on the trailer are likewise mounted but not shown. When the tractor is reversed to couple up, the front of the trailer is raised slightly relative to the posts 15 allowing the stop 44 to clear the angle member 45, and the striker plate 27 is pivoted to push the .undercarriage rearwardly against springs 31. Before the undercarriage reaches its limit of rear movement the roller 43 engages the cam nose 47 so that the bell cranks 39 are turned to withdraw the locking members 41. Further rearward movement of the undercarriage engages the roller 37 in the slot 48 so that the shaft 35 is rotated and the legs 17 raised through the arms 34 and the rods 33. When the trailer is unhitched, the tension springs 31 draw the undercarriage forwardly, the legs 17 drop, and the locking members 41 enter the posts 15 to hold the legs extended.
Patent GB-1366509-A (GB)
Title: Time of day indicating apparatus
IPC: G04G9/04
Filed: 1971-08-13
Abstract: 1366509 Time switches; electric selectors SUNCRUX RESEARCH OFFICE KK 13 Aug 1971 [14 Aug 1970 27 May 1971 7 Aug 1971 (2)] 38209/71 Heading H1N [Also in Division G3] In an electric clock in which time is displayed by the illumination of successive areas of a dial (see Division G3), the illumination may be controlled by a switch in the form of rotary drums 72, 77 having conductive areas against which are pressed fixed contacts Sm 0 -Sm 12  and Sh 0 - Sh 12  connected to the illumination sources of twelve minute and twelve hour areas respectively. The conductive areas on the minutes drum 72 are in the form of a stepped sleeve 75 fitted over an insulating sleeve 73a so that the minutes lamps are lighted cumulatively. The corresponding areas on hours drum 77 are twelve square contacts 76 fitted in an insulating sleeve 73b and engaging a conducting sleeve 74 beneath the latter. The minutes drum 72 is on a shaft 70 rotated once per hour and intermittently advances the hours drum 77 by indexing gearing-see Fig. 9. An alternative switch is described in which each section comprises two spaced contact arms (92, 93, Figs. 16, 17, not shown) which are carried on a rotary disc (87) and wipe the periphery of an adjacent, fixed contact disc (88). The surface of the fixed disc is made up of twenty-four conducting portions (E 1 , E 2  &c.) which are separated by insulating portions (I 1 , I 2  &c.) and connected in pairs, each pair being used to light one of twelve display lamps (96). In a further alternative, both display sections are controlled by a mechanism comprising a rotary plastics drum 107, Fig. 18, having moulded steps 107d to operate contact arms A 1 -A 12  which co-operate with fixed contacts G 1 -G 12 . The drum is advanced in steps by a pawl arm 110 actuated by an electromagnet 104 which receives a pulse each five minutes from a switch 122 operated by a cam 121 on a motor shaft. Once during each revolution of the drum, a pawl 107c thereon advances a ratchet wheel (115, Fig. 19, not shown) on a shaft carrying a rotary contact 118. The contact 118 moves over a conductive ring and contact areas K 1 -K 12  to control the hours display. The contacts are connected to terminals on boards 119, 120.
Patent GB-987712-A (GB)
Title: Flexible optical surgical instrument
IPC: A61B1/267
Filed: 1962-10-10
Abstract: 987,712. Surgical optical instruments. AMERICAN CYSTOSCOPE MAKERS Inc. Oct. 10, 1962 [Oct. 18, 1961], No. 38315/62. Heading A5R. An oesophagoscope incorporating a flexible light and image conducting fibre bundle has a spherically shaped lens forming its distal tip, to facilitate introduction of the instrument. The flexible portion of the instrument comprises two bundles of light-conducting glass fibres, one arranged concentrically around the other. The outer group 27 conducts light from an external, high-intensity source and conveys it through a glass cylinder 43 to the area being viewed. The inner group 26 has an optically ground end face 29 on which an image of the area is focused by an objective lens assembly 48, the image being conveyed by the fibre bundle to the proximal end where it is observed through an adjustable eyepiece. The distal end of the instrument is closed by a spherically shaped lens 46 of approximately zero power. In a modified form of the instrument, the objective lens assembly 48 is made slidable within the tube 41 so as to be focused as necessary and the necessary movement is effected by a wire in a flexible sheath and actuated by a rack-and-pinion mechanism located adjacent the eyepiece. Specification 953,294 is referred to.
Patent GB-1180707-A (GB)
Title: Improvements relating to Electrical Connectors
Inventor: KREHBIEL JOHN HAMMOND
IPC: H01R13/627
Filed: 1968-08-10
Abstract: 1,180,707. Two-part couplings. MOLEX PRODUCTS CO. 10 Aug., 1968, No. 38324/68. Heading H2E. A socket-contact housing 14 is retained in a receptacle 32, integral with a pin-contact housing 12, by an integral lug 60 which is received in a slot 52 (Fig. 2) extending in a resilient wall 34 of the receptacle 32 between a shoulder 42 and an integral lever 44; the latter being depressed to bend the wall 34 outwards to release the lug 60 for separation of the housings 12 and 14. A lug 80 on the other side of the housing 14 enters a similar slot 56 in the receptacle 32 and is triangular in section so that it may slide from its slot without the action of a lever. To facilitate correct orientation, ridges 110, 112 (Fig. 2) are provided on one side of each housing, and a guide surface 114 on a corner of the housing 14 may locate a complementary projection inside the receptacle 32. Resilient ears 90, 92 and 98, 100 are integral with the housings 14 and 12, respectively, for mounting in panel apertures. Pin contacts 22 and socket contacts 24 are located in bores 28. 20 in the housings 14, 12 and may be crimped to wires 18 and 26, respectively. Two lever-lug catches may be provided, situated either on the same side or on opposite sides of the connector assembly.
Patent GB-1393389-A (GB)
Title: Well drilling rig
IPC: E21B19/20
Filed: 1972-08-17
Abstract: 1393389 Boring earth &c RUSTON-BUCYRUS LTD 17 Aug 1972 [19 Aug 1971] 38369/72 Heading E1F A drilling rig has a transfer mechanism for simultaneously transporting a drill-pipe segment and a surrounding casing segment from a horizontal storage position to a vertical ready station beside the drilling rig mast (2), Figure 1 (not shown), and subsequently to a drilling position wherein the drill-casing segment is connected to a drive unit (88) (see Specification 1393388). Drill-casing segments are stored on a three-tiered rack 4, Figure 3, and each tier is formed by a fixed bracket 6 and a rocker arm 7 operable by a hydraulic ram 10 to tilt and discharge a single drillcasing segment onto a pair of carriages 16, (15). The carriages are mounted for movement to place the selected drill-casing segment in a pick position where a transfer arm 34, Figure 4, is able to grasp the drill-casing segment and hoist it to the vertical ready position. The transfer arm is pivotally mounted on the rig and comprises a pedestal section 35, a body section 36 rotatably mounted on the pedestal section, a cap section 37 rotatably connected to the body section, a lower mandible 43 connected to the body section and operable to grasp an end of the drill segment which protrudes from the casing segment. The drillcasing segment is swung into the drilling position by means of a hydraulic motor 68, and when in the drilling position the mandible 43 is swung clear by rotation of the cap section 37 following attachment of the drill pipe segment to the drive unit, and then the body section 36 is rotated to swing clear the lower mandible 43 following attachment of the casing segment to the drive unit. For the removal of drill-pipe segments from a well the procedure is reversed, the carriages (15), 16 being provided with load rams 32 to lift the segment upwardly onto an adjacent tier.
Patent GB-1411865-A (GB)
Title: High strength free-cutting sintered alloy and method of making  same
IPC: C22C33/02
Filed: 1973-08-14
Abstract: 1411865 Sintered iron alloy TOYOTA JIDOSHA KOGYO KK 14 Aug 1973 [18 Aug 1972] 38437/73 Heading C7A A free cutting sintered alloy having high strength and consisting of Cu 2 to 8% C 0.2 to 0.7% S 0.3 to 1 % Fe balance and having a theoretical density of more than 96%. The alloy may be prepared by compounding and moulding the above composition to 80 to 85% of the theoretical density, sintering the moulded product at 1100‹C to 1150‹C for 20-30 minutes in a non-oxidizing atmosphere and recompressing in either a hot or cold state to increase the theoretical density to more than 96%. The alloy may then be subjected to heat treatment e.g. normalizing, oil quenching from 900‹C and/or tempering at 580 C and may be used in structural applications.
Patent GB-868610-A (GB)
Title: Magnetostrictive pulse-time modulator
Inventor: POWELL ALBERT EDWIN
IPC: H03K7/04
Filed: 1958-11-29
Abstract: 868,610. Pulse modulation systems; measuring sound intensity. BYFORD LABS. Inc. Nov. 29, 1958, No. 38570/58. Classes 40(5) and 40(7) A magnetostrictive line 16 is connected between two absorbing masses 17 and 18, and a pulse generator 10 feeds a winding 11 transmitting a pulse to a receiving winding 20 feeding the transmission circuit 12, and a sync pulse directly to the latter through line 13. Modulation signals move the line 16 longitudinally through winding 20 by means of a magnetic core 26, coil 25 and connecting rod 23 to produce a time modulated pulse output to circuit 12. There may be two windings 20 and independent means for moving opposite ends of the magnetostrictive line through the two windings 20. An absorbing block 18 may be dispensed with by immersing an end of the line in a damping fluid. The system may transmit the instantaneous voltage of a sound produced signal. The transducer moving the line may be piezoelectric, electrostatic, magnetostrictive or electromagnetic temperature or pressure responsive mechanism. Specification 865,925 is referred to.
Patent GB-1491294-A (GB)
Title: Cutter and coupling pin for a rotary dry-shaver
IPC: B26B19/38
Filed: 1975-09-22
Abstract: 1491294 Dry shavers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 Sept 1975 [25 Sept 1974] 38792/75 Heading B4B A cutter 2 for a dry shaver of the kind having a motor for rotating a cutter via a coupling pin 1 having a non-circular end portion 5 engageable in a non-circular aperture or socket 6 in the cutter, wherein the aperture or socket has a shape such as to prevent radial displacement of the cutter relative to the coupling pin but permit rotational movement of the cutter relative to the pin through part of one revolution. As shown in Fig. 2, the aperture 6 is provided with surfaces 8 for engagement by the drive pin during rotation and with surfaces 9, 10 which permit a certain amount of rotation of the cutter relative to the pin when the cutter is being assembled thereon.